Benchmark ADC16 Bedienerhandbuch PDF herunterladen (Seite 15)

ADC16 Instruction Manual – Rev A Page 15

Analog Line-Level Inputs

The balanced "ANALOG IN" line-level inputs

follow the Tascam Analog DB-25 standard.

Cables are available from many sources.

The analog inputs are factory calibrated to an

input sensitivity of +4 dBu @ -20 dBFS. Rear-

panel trim pots ( ) allow adjustment over a

23-db range. At minimum gain, the

sensitivity is +9 dBu at -20 dBFS. At

maximum gain, the sensitivity is -14 dBu at -

20 dBFS. Unbalanced -10 dBv inputs are

easily accommodated within this range.

The input impedance is 200k Ohms balanced,

and 100k Ohms unbalanced.

Each analog input is equipped with an RF

filter network. The ADC16 exhibits no

measurable change in performance when

subjected to EN 61000-6-2 RF immunity

tests.

'ANALOG IN' DB-25 Pinout

The 'ANALOG IN' DB-25 pinout follows the

Tascam Analog DB-25 standard:

H = "+" (or hot), C = "-" (or cold), G = GND

Unbalanced Source Adaptation

1. Connect "+" or hot (tip on ¼ phone plug,

center pin on RCA plug).

2. Connect both the ground conductor AND

the"-" conductor to the connector's

ground (sleeve on ¼" phone plug, or case

on RCA plug).

NOTE: When connecting an unbalanced

source to the balanced analog input, it's best

to use balanced wiring ("+", "-", "shield") and

to tie the "-"and "shield" at the unbalanced

connector (source).

Input Level Trim-Pots

Each channel on the ADC16 is equipped with

10-turn "INPUT LEVEL" trim-pots. These trim

pots are located on the back panel near the

optical outputs.

The "INPUT LEVEL" trim-pots have a range of

approximately 23 dB. At their minimum

setting, the ADC16 will clip upon receiving a

+29 dBu analog input signal. At their

maximum setting, the ADC16 will clip upon

receiving a +6 dBu analog input signal.

The "INPUT LEVEL" trim-pots are factory-set

to clip at +24 dBu.

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